Lua

Send XML REST Request, Get Response with No Body (Google Cloud Storage)

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Demonstrates sending a RESTful XML request, and receiving a response where the expected response is a header with no body (Content-Length = 0). This example will create a bucket in Google Cloud Storage using the Google Cloud Storage XML API.

See Create a Bucket using the XML API for additional request options.

Lua

local chilkat = require("chilkat")

-- This example will create a bucket in Google Cloud Storage using the XML API.

-- It requires the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local gAuth = chilkat.AuthGoogle.new()
-- Obtain an access token as shown in one of the following examples:
-- See Get Access Token using a Service Account JSON Key
-- See Get Access Token using a P12 File

local rest = chilkat.Rest.new()

-- Connect using TLS.
local bAutoReconnect = true
local success = rest:connect("www.googleapis.com", 443, true, bAutoReconnect)

-- Provide the authentication credentials (i.e. the access key)
success = rest:set_auth_google(gAuth)

-- Build the XML request body for creating a bucket.
-- See https://cloud.google.com/storage/docs/xml-api/put-bucket-create
local xmlReqBody = chilkat.Xml.new()
xmlReqBody.tag = "CreateBucketConfiguration"
xmlReqBody:new_child2("LocationConstraint", "us")
xmlReqBody:new_child2("StorageClass", "STANDARD")

-- Show the HTTP request body we'll be sending.
print(xmlReqBody:get_xml())

-- There are no query parameters...

-- The HOST header must be specified, because it needs to be different than
-- the domain previously passed to the Connect method.
-- The name of the bucket is the 1st part of the HOST header.
success = rest:add_header("Host", "chilkat-example-bucket.storage.googleapis.com")

-- The project ID is specified in an HTTP request header
success = rest:add_header("x-goog-project-id", "chilkattest-1050")

-- In this case, the response body is expected to be empty.  We can still
-- call FullRequestString.  We expect an empty string to be returned.
local responseStr = rest:full_request_string("PUT", "/", xmlReqBody:get_xml())
if not rest.last_method_success then
    print(rest.last_error_text)
    return
end

-- Check the response status code to make sure it is 200.
local responseStatus = rest.response_status_code
print("Response Status Code = " .. responseStatus)